FUNCTIONAL UNIT FOR MEASURING THE INSULATION RESISTANCE OF AN ELECTRICAL SYSTEM
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United States of America Patent
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Oct 22, 2015
app pub date -
Nov 19, 2013
filing date -
Nov 20, 2012
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Abstract
A functional unit measures the insulation resistance of an electrical system when the power supply of the electrical system is switched off. The electrical system includes an electrical reference potential, at least one electrical outer conductor, and an earth line. The functional unit is formed as a switch unit for connecting an electrical measurement device. The switch unit is configured to be connected to the electrical outer conductor, the electrical reference potential, and the earth line of the electrical system. The switch unit includes first, second, and third switches.
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